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Finding the Third Proportional to 6,621 and 14,317.50

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Solution

The third proportional to 6,621 and 14,317.50 is: 30,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621 : 14,317.50 = 14,317.50 : x
  2. Step 2: Convert to fraction form
    6,621/14,317.50 = 14,317.50/x
  3. Step 3: Cross multiply
    6,621x = 14,317.50 × 14,317.50
  4. Step 4: Simplify right side
    6,621x = 204,990,806.25
  5. Step 5: Solve for x
    x = 204,990,806.25/6,621
  6. Step 6: Final answer
    x = 30,960.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.